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| # ocxserialtest.py | |
| # | |
| # Sample that uses the mscomm OCX to talk to a serial | |
| # device. | |
| # Very simple - queries a modem for ATI responses | |
| import pythoncom | |
| import win32con | |
| import win32ui | |
| import win32uiole | |
| from pywin.mfc import activex, dialog | |
| from win32com.client import gencache | |
| SERIAL_SETTINGS = "19200,n,8,1" | |
| SERIAL_PORT = 2 | |
| win32ui.DoWaitCursor(1) | |
| serialModule = gencache.EnsureModule("{648A5603-2C6E-101B-82B6-000000000014}", 0, 1, 1) | |
| win32ui.DoWaitCursor(0) | |
| if serialModule is None: | |
| raise ImportError("MS COMM Control does not appear to be installed on the PC") | |
| def MakeDlgTemplate(): | |
| style = ( | |
| win32con.DS_MODALFRAME | |
| | win32con.WS_POPUP | |
| | win32con.WS_VISIBLE | |
| | win32con.WS_CAPTION | |
| | win32con.WS_SYSMENU | |
| | win32con.DS_SETFONT | |
| ) | |
| cs = win32con.WS_CHILD | win32con.WS_VISIBLE | |
| dlg = [ | |
| ["Very Basic Terminal", (0, 0, 350, 180), style, None, (8, "MS Sans Serif")], | |
| ] | |
| s = win32con.WS_TABSTOP | cs | |
| dlg.append( | |
| [ | |
| "RICHEDIT", | |
| None, | |
| 132, | |
| (5, 5, 340, 170), | |
| s | |
| | win32con.ES_WANTRETURN | |
| | win32con.ES_MULTILINE | |
| | win32con.ES_AUTOVSCROLL | |
| | win32con.WS_VSCROLL, | |
| ] | |
| ) | |
| return dlg | |
| #################################### | |
| # | |
| # Serial Control | |
| # | |
| class MySerialControl(activex.Control, serialModule.MSComm): | |
| def __init__(self, parent): | |
| activex.Control.__init__(self) | |
| serialModule.MSComm.__init__(self) | |
| self.parent = parent | |
| def OnComm(self): | |
| self.parent.OnComm() | |
| class TestSerDialog(dialog.Dialog): | |
| def __init__(self, *args): | |
| dialog.Dialog.__init__(*(self,) + args) | |
| self.olectl = None | |
| def OnComm(self): | |
| event = self.olectl.CommEvent | |
| if event == serialModule.OnCommConstants.comEvReceive: | |
| self.editwindow.ReplaceSel(self.olectl.Input) | |
| def OnKey(self, key): | |
| if self.olectl: | |
| self.olectl.Output = chr(key) | |
| def OnInitDialog(self): | |
| rc = dialog.Dialog.OnInitDialog(self) | |
| self.editwindow = self.GetDlgItem(132) | |
| self.editwindow.HookAllKeyStrokes(self.OnKey) | |
| self.olectl = MySerialControl(self) | |
| try: | |
| self.olectl.CreateControl( | |
| "OCX", | |
| win32con.WS_TABSTOP | win32con.WS_VISIBLE, | |
| (7, 43, 500, 300), | |
| self._obj_, | |
| 131, | |
| ) | |
| except win32ui.error: | |
| self.MessageBox("The Serial Control could not be created") | |
| self.olectl = None | |
| self.EndDialog(win32con.IDCANCEL) | |
| if self.olectl: | |
| self.olectl.Settings = SERIAL_SETTINGS | |
| self.olectl.CommPort = SERIAL_PORT | |
| self.olectl.RThreshold = 1 | |
| try: | |
| self.olectl.PortOpen = 1 | |
| except pythoncom.com_error as details: | |
| print( | |
| "Could not open the specified serial port - %s" | |
| % (details.excepinfo[2]) | |
| ) | |
| self.EndDialog(win32con.IDCANCEL) | |
| return rc | |
| def OnDestroy(self, msg): | |
| if self.olectl: | |
| try: | |
| self.olectl.PortOpen = 0 | |
| except pythoncom.com_error as details: | |
| print("Error closing port - %s" % (details.excepinfo[2])) | |
| return dialog.Dialog.OnDestroy(self, msg) | |
| def test(): | |
| d = TestSerDialog(MakeDlgTemplate()) | |
| d.DoModal() | |
| if __name__ == "__main__": | |
| from . import demoutils | |
| if demoutils.NeedGoodGUI(): | |
| test() | |